package com.sky.mapper;

import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {

    /**
     * 查询购物车中是否存在
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 如果有，则数量加一
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart shoppingCart);

    /**
     * 增添购物车数据
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (name, image, user_id, dish_id, setmeal_id, dish_flavor, number,amount, create_time) values (#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{createTime})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 清空购物车
     */
    @Delete("delete from shopping_cart where user_id = #{userId}")
    void clean( ShoppingCart shoppingCart);


    /**
     * 查询菜品的数量
     */
    Long dishNumber(ShoppingCartDTO shoppingCartDTO);

    /**
     * 删除购物车中一个商品
     */
    void subCart(ShoppingCartDTO shoppingCartDTO);

    /**
     * -1
     * @param shoppingCart
     */
//    @Update("update shopping_cart set number = #{number} ")
    void subCart1(ShoppingCart shoppingCart);


    /**
     * 批量插入购物车数据
     *
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);

}
